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  • 专利标题:   Membrane used for dehydrating gas, comprises support coated with composite comprising graphene oxide compound and polyvinyl alcohol, and has high moisture permeability and low gas permeability.
  • 专利号:   WO2017044845-A1, WO2017044845-A8, CA2998153-A1, KR2018049064-A, EP3347121-A1, US2018193806-A1, CN108348868-A, JP2018532579-W
  • 发明人:   ZHENG S, WANG P, ROMERO R, KITAHARA I, LIN W
  • 专利权人:   NITTO DENKO CORP, ZHENG S, NITTO DENKO CORP
  • 国际专利分类:   B01D053/26, B01D069/14, B01D053/22, B01D071/02, B01D071/38, C01B032/198, C08J003/24, B01D069/10, B01D069/12
  • 专利详细信息:   WO2017044845-A1 16 Mar 2017 B01D-069/14 201722 Pages: 33 English
  • 申请详细信息:   WO2017044845-A1 WOUS051101 09 Sep 2016
  • 优先权号:   US216938P, US292136P, CA2998153, US915459

▎ 摘　　要

NOVELTY - A dehydrating membrane (5) comprises a support and a composite coated on the support. The composite comprises a graphene oxide compound and polyvinyl alcohol. The membrane has a high moisture permeability and low gas permeability. USE - Membrane is used in device for dehydrating gas (all claimed). Uses include but are not limited to air, oxygen, nitrogen, hydrogen, methane, propylene, carbon dioxide, natural gas, etc. ADVANTAGE - The dehydrating membrane exhibits reduced water-swelling property and improved water/oxygen selectivity, and is manufactured economically. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) dehydration of a gas (G1); (2) device (1) for dehydrating gas; and (3) manufacture of the dehydrating or moisture-permeable membrane. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the device containing the dehydrating membrane. Dehydrating device (1) Dehydrating membrane (5) Chambers (10,20) Valve (25) Gas flow direction (30) Water flow direction (40)